Hose-coupling



"NIT STATES PATENT OFFICE.

ALBERT A. HART, OF RICHMOND, CALIFQRN IAL HOSE-COUPLING.

I Application filed October 15,

To all whom it may concern: I

Be it known that I, ALBERT A. HART, a citizen of the United States, residing at Richmond, in the county of Contra Costa and State of California, have invented certain new and useful Improvements in Hose- Couplings, of which the following is a speoi- I nection with a hose carrying compressed air.

Another object of the invention is to pro- 'vide a coupler so constructed that the two sections of the coupler may be easily aiid quickly connected with the two hose sections and the two. sections ofthe coupler then securely connected',' provision being made for an air-tight joint between the two sec-' tions of the coupler.

Another object of the invention is to provide an improved t pe of gasket between the two sections of t e coupler.

This inventionis illustrated in the accompanying drawings, wherein v Figure 1 is a view. showing the improved coupler in side elevation. Fig. 2 is a longi udinal sectional through the improvedcoupler. v

Fig. 3 is a view showing the improved washer orgasketin section.

This coupler comprises two sections, one of which includes a tubular body 10 pro vided intermediate its length with an abutment shoulder or collar 11 and threaded as shown at 12 atthe rear of said shoulder and having its rear end 13 reduced and tapered as shown'inFig. 2, thus providingarredgd. for spreading the end portion of a hose view.

positioned within thesleeve 14 now to be de-v l scribed. This sleeve 14 is provided'at one end with a reduced mouth and at its other end with a thickened internally threadedshoulder 16 with a chamber 17 located be tween the mouth 15 and shoulder '16. One end of a hose section to be connected will be passed through the mouth 15 into the sleeve 14 and the sleeve thenscrewed uponthe threaded portion 12 of the body 10 with I Specification of Letters Patent.

into

Patented May 11, 1920.

1918. SeriaI No. 258,285.

' the tubular wedge lifitting'into the hose and spreading it within the chamber 17. It should be noted that the wedge extends into themouth 15 thus tightlyclamping the hose between the innerend of the wedge and the walls ofthe mouth. The front end of body 10 is beveled as shown in Fig. 2 and adjacent this end on the outer 'face of said 'body are provided pins 18 which radiate therefrom andare designed for a purpose to be described.

The second section of this coupler is pro vided with a tubular body '19 having its inner end 20 tapered to provide a wedge similar to the wedge 13 and thickened intermediate its length and threaded to provide a threaded shoulder 21 positioned at the rear of a head or cup 22 formed on its front end. This. head or cup 22 is provided with bayonet slots 23 to receive the pins 18, the slots being provided, at their inner ends with pockets 24 into which the pins will fit as shown in Fig. 1 when the two sections of the coupler are connected. The. cup 22 is cut as shown in Fig. 2 toprovide a seat 25 for the gasket 26 which gasket is formed of compressible material such as rubber and provided with thickened end portions 27, the thickened end portion terminating in spaced relation as shown at 28 thus permitting the thickenede'nd portion to be com missed and brought together. as shown in fig. 2 to provide a very tight joint 'thus preventing leakage. The end portion of the second section of the hose will be passed through the constricted neck; 29. of the sleeve 30 and'will fit into the'chamber 31 thereof and when-this sleeve is screwed upon the threaded shoulder 21 of the tubular 19, "the wedge 20 of this section will fit the hose and tightly secure the hose within the sleeve in the'same manner as the hose section will be secured-within the sleeve 14.....1Itiwill thus be seen that when it is de-- sired to connect'two sections of a hose, one of the sections of th'co upler will be connected with one section of the hose and the second section of the coupler will be connectbody ed with the second section of the hose. The

two sections of the coupler will then be connected as shown in Figs. 1 and 2 thus providing a very tight and secure 'joint which howeverwill be so constructed that the two sections of the coupler can be separated thus releasing the two hose sections without it being necessary to disconnect the sections of the coupler from the sections of the hose with which they are connected.

What is claimed is A hose coupling of the class described comprising two sections, one of which in cludesa tubular body provided intermediately its length with an abutment shoulder a'ndexteriorly threaded at the rear of said shoulder with its rear end reduced and tapered to provide a spreading'wedge, the

. front end of said body being beveled and having laterally extending pins between said end and sand shoulder, a sleeve encompassingsaid body in, rear of said shoulder, and

-. having a thickened interiorly threaded shoulder at one end for engagement. with -the threads of said body, said. sleeve being interiorly thickened at its other end to form a reduced mouth, opening beyond the rear end of said body, the inner end of said mouth being disposed, op posite the tapered end of said bodyf the other section comprising a tubular body with a tapered wedge at its rear end, and thickened intermediately its ends on its outer face, said thickened portion being threaded, av sleeve encompassing the rear end of said section and threaded interiorly to engage said thickened portion, said lastmentioned section having a cup-shaped head at its front end equipped with bayonet slots to receive the pins of the other section, said' 

